/*
 * ***** BEGIN GPL LICENSE BLOCK *****
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
 * All rights reserved.
 *
 * The Original Code is: all of this file.
 *
 * Contributor(s): none yet.
 *
 * ***** END GPL LICENSE BLOCK *****
 */

/** \file ghost/intern/GHOST_WindowX11.cpp
 *  \ingroup GHOST
 */


#include <GL/glxew.h>

#include "GHOST_WindowX11.h"
#include "GHOST_SystemX11.h"
#include "STR_String.h"
#include "GHOST_Debug.h"

#ifdef WITH_XDND
#include "GHOST_DropTargetX11.h"
#endif

/* For standard X11 cursors */
#include <X11/cursorfont.h>
#include <X11/Xatom.h>

#if defined(__sun__) || defined(__sun) || defined(__sparc) || defined(__sparc__) || defined(_AIX)
#include <strings.h>
#endif

#include <cstring>
#include <cstdio>

#include <algorithm>
#include <string>

/* For obscure full screen mode stuff
 * lifted verbatim from blut. */

typedef struct {
	long flags;
	long functions;
	long decorations;
	long input_mode;
} MotifWmHints;

// Workaround for MESA bug #54080
// https://bugs.freedesktop.org/show_bug.cgi?id=54080()
#define SWAP_INTERVALS_WORKAROUND

#ifdef SWAP_INTERVALS_WORKAROUND
static bool g_swap_interval_disabled = false;
#endif  // SWAP_INTERVALS_WORKAROUND

#define MWM_HINTS_DECORATIONS         (1L << 1)


// #define GHOST_X11_GRAB

/*
 * A Client can't change the window property, that is
 * the work of the window manager. In case, we send
 * a ClientMessage to the RootWindow with the property
 * and the Action (WM-spec define this):
 */
#define _NET_WM_STATE_REMOVE 0
#define _NET_WM_STATE_ADD 1
// #define _NET_WM_STATE_TOGGLE 2 // UNUSED

/*
 * import bpy
 * ima = bpy.data.images["blender.png"]
 * w, h = ima.size
 * print("%d,%d," % (w, h))
 * for y in range(h - 1, -1, -1):
 *     px = []
 *     for x in range(w):
 *         p = ((y * w) + x) * 4
 *         rgba = ima.pixels[p : p + 4]
 *         rgba = rgba[2], rgba[1], rgba[0], rgba[3]
 *         px.append(sum((int(p * 255) << (8 * i)) for i, p in enumerate(rgba)))
 *     print(", ".join([str(p) for p in px]), end=",\n")
 */

/* See the python script above to regenerate the 48x48 icon within blender */
static long BLENDER_ICON_48x48x32[] = {
	48,48,
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	4671303, 3352387072, 4192301839, 4294282279, 4294019626, 4192302873, 4124139523, 1708088576, 4671303, 4671303, 67108864, 184549376, 285212672, 385875968, 486539264, 638387968, 3888864256, 4276847393, 4294414896, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4293954086, 4293502050, 4293179274, 4292855728, 4292662218, 4292920489, 4293243778, 4293501275, 4294083608, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294345491, 4294420571, 4107626251, 1322146816, 4671303, 4671303, 4671303,
	4671303, 382819584, 3134217472, 4191116288, 3939458560, 2211470592, 533617152, 4671303, 4671303, 117440512, 218103808, 335544320, 436207616, 553648128, 654311424, 771751936, 1534079488, 4157496833, 4294219326, 4294346523, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294278150, 4294485590, 4175527207, 2932497152, 117440512, 4671303, 4671303, 4671303,
	4671303, 4671303, 4671303, 50298880, 33488896, 4671303, 4671303, 4671303, 83886080, 201326592, 318767104, 436207616, 553648128, 671088640, 788529152, 889192448, 1006632960, 2493203712, 4157958415, 4294352457, 4294347039, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294278924, 4294486105, 4260073533, 3872218112, 525476096, 218103808, 100663296, 4671303, 4671303,
	4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 16777216, 134217728, 251658240, 369098752, 486539264, 603979776, 721420288, 855638016, 973078528, 1090519040, 1207959552, 2930002688, 4174604044, 4294221386, 4294414637, 4294277634, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294346522, 4294552931, 4226189107, 3888929792, 997536768, 385875968, 251658240, 150994944, 16777216, 4671303,
	4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 16777216, 134217728, 251658240, 369098752, 486539264, 603979776, 721420288, 855638016, 956301312, 1073741824, 1191182336, 1325400064, 2693873664, 4191117319, 4293891393, 4294485073, 4294347296, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294344717, 4294484299, 4294421863, 4208884260, 3687340544, 910958848, 503316480, 385875968, 251658240, 134217728, 16777216, 4671303,
	4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 83886080, 201326592, 318767104, 436207616, 536870912, 671088640, 771751936, 889192448, 989855744, 1107296256, 1207959552, 1325400064, 2187996928, 3972487680, 4191711513, 4294156111, 4294485591, 4294415926, 4294346007, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294277376, 4294278408, 4294414379, 4294484817, 4294554221, 4259941691, 4157628420, 2746568960, 807735296, 553648128, 436207616, 318767104, 218103808, 83886080, 4671303, 4671303,
	4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 100663296, 218103808, 318767104, 436207616, 536870912, 637534208, 754974720, 855638016, 956301312, 1040187392, 1140850688, 1224736768, 1342833408, 2677293568, 4174142464, 4157959447, 4276718648, 4294288986, 4294554220, 4294552415, 4294485074, 4294484300, 4294551641, 4294553705, 4294554738, 4294025043, 4175528237, 4174405895, 3384956928, 1264790528, 654311424, 553648128, 436207616, 335544320, 218103808, 117440512, 4671303, 4671303, 4671303,
	4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 50331648, 167772160, 268435456, 385875968, 469762048, 553648128, 654311424, 738197504, 822083584, 905969664, 973078528, 1023410176, 1090519040, 1208878848, 2054632960, 3165868032, 4123810816, 4224671493, 4157762069, 4124604196, 4141644844, 4124471839, 4174538769, 4241448451, 3586611712, 2275493888, 1078731776, 671088640, 570425344, 486539264, 385875968, 285212672, 184549376, 67108864, 4671303, 4671303, 4671303, 4671303,
	4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 67108864, 167772160, 251658240, 335544320, 419430400, 503316480, 570425344, 637534208, 704643072, 738197504, 788529152, 822083584, 855638016, 872415232, 889192448, 1042616320, 1365125376, 1702770688, 1821064448, 1467299072, 1095443200, 738985472, 637534208, 587202560, 503316480, 436207616, 352321536, 268435456, 184549376, 67108864, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303,
	4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 16777216, 67108864, 150994944, 234881024, 301989888, 352321536, 402653184, 452984832, 486539264, 520093696, 536870912, 553648128, 570425344, 570425344, 553648128, 536870912, 520093696, 486539264, 452984832, 402653184, 352321536, 301989888, 234881024, 167772160, 67108864, 16777216, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303,
	4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 50331648, 83886080, 134217728, 167772160, 201326592, 218103808, 234881024, 251658240, 251658240, 234881024, 218103808, 201326592, 167772160, 134217728, 83886080, 50331648, 16777216, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303,
	4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303,
	4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303,
	4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303,
	4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303,
	4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303, 4671303,
};


GLXContext GHOST_WindowX11::s_firstContext = NULL;

GHOST_WindowX11::
GHOST_WindowX11(
        GHOST_SystemX11 *system,
        Display *display,
        const STR_String& title,
        GHOST_TInt32 left,
        GHOST_TInt32 top,
        GHOST_TUns32 width,
        GHOST_TUns32 height,
        GHOST_TWindowState state,
        const GHOST_TEmbedderWindowID parentWindow,
        GHOST_TDrawingContextType type,
        const bool stereoVisual,
        const bool exclusive,
        const GHOST_TUns16 numOfAASamples)
    : GHOST_Window(width, height, state, type, stereoVisual, exclusive, numOfAASamples),
      m_context(NULL),
      m_display(display),
      m_normal_state(GHOST_kWindowStateNormal),
      m_system(system),
      m_valid_setup(false),
      m_invalid_window(false),
      m_empty_cursor(None),
      m_custom_cursor(None),
      m_visible_cursor(None)
{
	
	/* Set up the minimum attributes that we require and see if
	 * X can find us a visual matching those requirements. */

	int attributes[40], i, samples;
	int natom;
	int glxVersionMajor, glxVersionMinor; /* As in GLX major.minor */

	m_visual = NULL;

	if (!glXQueryVersion(m_display, &glxVersionMajor, &glxVersionMinor)) {
		printf("%s:%d: X11 glXQueryVersion() failed, verify working openGL system!\n", __FILE__, __LINE__);
		
		/* exit if this is the first window */
		if (s_firstContext == NULL) {
			printf("initial window could not find the GLX extension, exit!\n");
			exit(1);
		}

		return;
	}

	/* Find the display with highest samples, starting at level requested */
	for (samples = m_numOfAASamples; samples >= 0; samples--) {
		i = 0; /* Reusing attributes array, so reset counter */

		if (m_stereoVisual)
			attributes[i++] = GLX_STEREO;

		attributes[i++] = GLX_RGBA;
		attributes[i++] = GLX_DOUBLEBUFFER;
		attributes[i++] = GLX_RED_SIZE;   attributes[i++] = 1;
		attributes[i++] = GLX_BLUE_SIZE;  attributes[i++] = 1;
		attributes[i++] = GLX_GREEN_SIZE; attributes[i++] = 1;
		attributes[i++] = GLX_DEPTH_SIZE; attributes[i++] = 1;
#ifdef GHOST_OPENGL_ALPHA
		attributes[i++] = GLX_ALPHA_SIZE; attributes[i++] = 1;
#endif
		/* GLX >= 1.4 required for multi-sample */
		if (samples && (glxVersionMajor >= 1) && (glxVersionMinor >= 4)) {
			attributes[i++] = GLX_SAMPLE_BUFFERS; attributes[i++] = 1;
			attributes[i++] = GLX_SAMPLES; attributes[i++] = samples;
		}
		attributes[i] = None;

		m_visual = glXChooseVisual(m_display, DefaultScreen(m_display), attributes);

		/* Any sample level or even zero, which means oversampling disabled, is good
		 * but we need a valid visual to continue */
		if (m_visual == NULL) {
			if (samples == 0) {
				/* All options exhausted, cannot continue */
				printf("%s:%d: X11 glXChooseVisual() failed, verify working openGL system!\n", __FILE__, __LINE__);
				
				if (s_firstContext == NULL) {
					printf("initial window could not find the GLX extension, exit!\n");
					exit(1);
				}
				
				return;
			}
		}
		else {
			if (m_numOfAASamples && (m_numOfAASamples > samples)) {
				printf("%s:%d: oversampling requested %i but using %i samples\n",
				       __FILE__, __LINE__, m_numOfAASamples, samples);
			}
			break;
		}
	}

	/* Create a bunch of attributes needed to create an X window. */


	/* First create a colormap for the window and visual.
	 * This seems pretty much a legacy feature as we are in rgba mode anyway. */

	XSetWindowAttributes xattributes;
	unsigned int xattributes_valuemask = (CWBorderPixel | CWColormap | CWEventMask);
	memset(&xattributes, 0, sizeof(xattributes));

	xattributes.colormap = XCreateColormap(m_display,
	                                       RootWindow(m_display, m_visual->screen),
	                                       m_visual->visual,
	                                       AllocNone
	                                       );

	xattributes.border_pixel = 0;

	/* Specify which events we are interested in hearing. */

	xattributes.event_mask =
	        ExposureMask | StructureNotifyMask |
	        KeyPressMask | KeyReleaseMask |
	        EnterWindowMask | LeaveWindowMask |
	        ButtonPressMask | ButtonReleaseMask |
	        PointerMotionMask | FocusChangeMask |
	        PropertyChangeMask | KeymapStateMask;

	if (exclusive) {
		xattributes_valuemask |= CWOverrideRedirect;
		xattributes.override_redirect = True;
	}

	/* create the window! */
	if (parentWindow == 0) {
		m_window =  XCreateWindow(m_display,
		                          RootWindow(m_display, m_visual->screen),
		                          left,
		                          top,
		                          width,
		                          height,
		                          0,  /* no border. */
		                          m_visual->depth,
		                          InputOutput,
		                          m_visual->visual,
		                          xattributes_valuemask,
		                          &xattributes
		                          );
	}
	else {

		Window root_return;
		int x_return, y_return;
		unsigned int w_return, h_return, border_w_return, depth_return;
		
		XGetGeometry(m_display, parentWindow, &root_return, &x_return, &y_return,
		             &w_return, &h_return, &border_w_return, &depth_return);

		left = 0;
		top = 0;
		width = w_return;
		height = h_return;


		m_window = XCreateWindow(m_display,
		                         parentWindow,  /* reparent against embedder */
		                         left,
		                         top,
		                         width,
		                         height,
		                         0,     /* no border. */
		                         m_visual->depth,
		                         InputOutput,
		                         m_visual->visual,
		                         xattributes_valuemask,
		                         &xattributes
		                         );

		XSelectInput(m_display, parentWindow, SubstructureNotifyMask);
		
	}	

#ifdef WITH_XDND
	/* initialize drop target for newly created window */
	m_dropTarget = new GHOST_DropTargetX11(this, m_system);
	GHOST_PRINT("Set drop target\n");
#endif

	if (state == GHOST_kWindowStateMaximized || state == GHOST_kWindowStateFullScreen) {
		Atom _NET_WM_STATE = XInternAtom(m_display, "_NET_WM_STATE", False);
		Atom _NET_WM_STATE_MAXIMIZED_VERT = XInternAtom(m_display, "_NET_WM_STATE_MAXIMIZED_VERT", False);
		Atom _NET_WM_STATE_MAXIMIZED_HORZ = XInternAtom(m_display, "_NET_WM_STATE_MAXIMIZED_HORZ", False);
		Atom _NET_WM_STATE_FULLSCREEN     = XInternAtom(m_display, "_NET_WM_STATE_FULLSCREEN", False);
		Atom atoms[2];
		int count = 0;

		if (state == GHOST_kWindowStateMaximized) {
			atoms[count++] = _NET_WM_STATE_MAXIMIZED_VERT;
			atoms[count++] = _NET_WM_STATE_MAXIMIZED_HORZ;
		}
		else {
			atoms[count++] = _NET_WM_STATE_FULLSCREEN;
		}

		XChangeProperty(m_display, m_window, _NET_WM_STATE, XA_ATOM, 32,
		                PropModeReplace, (unsigned char *)atoms, count);
		m_post_init = False;
	}
	/*
	 * One of the problem with WM-spec is that can't set a property
	 * to a window that isn't mapped. That is why we can't "just
	 * call setState" here.
	 *
	 * To fix this, we first need know that the window is really
	 * map waiting for the MapNotify event.
	 *
	 * So, m_post_init indicate that we need wait for the MapNotify
	 * event and then set the Window state to the m_post_state.
	 */
	else if ((state != GHOST_kWindowStateNormal) && (state != GHOST_kWindowStateMinimized)) {
		m_post_init = True;
		m_post_state = state;
	}
	else {
		m_post_init = False;
		m_post_state = GHOST_kWindowStateNormal;
	}

	/* Create some hints for the window manager on how
	 * we want this window treated. */

	XSizeHints *xsizehints = XAllocSizeHints();
	xsizehints->flags = PPosition | PSize | PMinSize | PMaxSize;
	xsizehints->x = left;
	xsizehints->y = top;
	xsizehints->width = width;
	xsizehints->height = height;
	xsizehints->min_width = 320;     /* size hints, could be made apart of the ghost api */
	xsizehints->min_height = 240;    /* limits are also arbitrary, but should not allow 1x1 window */
	xsizehints->max_width = 65535;
	xsizehints->max_height = 65535;
	XSetWMNormalHints(m_display, m_window, xsizehints);
	XFree(xsizehints);

	XClassHint *xclasshint = XAllocClassHint();
	const int len = title.Length() + 1;
	char *wmclass = (char *)malloc(sizeof(char) * len);
	strncpy(wmclass, (const char *)title, sizeof(char) * len);
	xclasshint->res_name = wmclass;
	xclasshint->res_class = wmclass;
	XSetClassHint(m_display, m_window, xclasshint);
	free(wmclass);
	XFree(xclasshint);

	/* The basic for a good ICCCM "work" */
	if (m_system->m_atom.WM_PROTOCOLS) {
		Atom atoms[2];
		natom = 0;

		if (m_system->m_atom.WM_DELETE_WINDOW) {
			atoms[natom] = m_system->m_atom.WM_DELETE_WINDOW;
			natom++;
		}

		if (m_system->m_atom.WM_TAKE_FOCUS) {
			atoms[natom] = m_system->m_atom.WM_TAKE_FOCUS;
			natom++;
		}

		if (natom) {
			/* printf("Register atoms: %d\n", natom); */
			XSetWMProtocols(m_display, m_window, atoms, natom);
		}
	}

#if defined(WITH_X11_XINPUT) && defined(X_HAVE_UTF8_STRING)
	m_xic = NULL;
#endif

	/* Set the window hints */
	XWMHints *xwmhints = XAllocWMHints();
	xwmhints->initial_state = NormalState;
	xwmhints->input = True;
	xwmhints->flags = InputHint | StateHint;
	XSetWMHints(display, m_window, xwmhints);
	XFree(xwmhints);
	/* done setting the hints */

	/* set the icon */
	Atom _NET_WM_ICON     = XInternAtom(m_display, "_NET_WM_ICON", False);
	XChangeProperty(m_display, m_window, _NET_WM_ICON, XA_CARDINAL,
	                32, PropModeReplace, (unsigned char *)BLENDER_ICON_48x48x32,
	                BLENDER_ICON_48x48x32[0] * BLENDER_ICON_48x48x32[1] + 2);
	/* done setting the icon */

	setTitle(title);

#ifdef WITH_X11_XINPUT
	initXInputDevices();

	m_tabletData.Active = GHOST_kTabletModeNone;
#endif

	/* now set up the rendering context. */
	if (installDrawingContext(type) == GHOST_kSuccess) {
		m_valid_setup = true;
		GHOST_PRINT("Created window\n");
	}

	if (exclusive) {
		XMapRaised(m_display, m_window);
	}
	else {
		XMapWindow(m_display, m_window);
	}
	GHOST_PRINT("Mapped window\n");

	XFlush(m_display);
}

#if defined(WITH_X11_XINPUT) && defined(X_HAVE_UTF8_STRING)
static void destroyICCallback(XIC xic, XPointer ptr, XPointer data)
{
	GHOST_PRINT("XIM input context destroyed\n");

	if (ptr) {
		*(XIC *)ptr = NULL;
	}
}

bool GHOST_WindowX11::createX11_XIC()
{
	XIM xim = m_system->getX11_XIM();
	if (!xim)
		return false;

	XICCallback destroy;
	destroy.callback = (XICProc)destroyICCallback;
	destroy.client_data = (XPointer)&m_xic;
	m_xic = XCreateIC(xim, XNClientWindow, m_window, XNFocusWindow, m_window,
	                  XNInputStyle, XIMPreeditNothing | XIMStatusNothing,
	                  XNResourceName, GHOST_X11_RES_NAME,
	                  XNResourceClass, GHOST_X11_RES_CLASS,
	                  XNDestroyCallback, &destroy,
	                  NULL);
	if (!m_xic)
		return false;

	unsigned long fevent;
	XGetICValues(m_xic, XNFilterEvents, &fevent, NULL);
	XSelectInput(m_display, m_window,
	             ExposureMask | StructureNotifyMask |
	             KeyPressMask | KeyReleaseMask |
	             EnterWindowMask | LeaveWindowMask |
	             ButtonPressMask | ButtonReleaseMask |
	             PointerMotionMask | FocusChangeMask |
	             PropertyChangeMask | KeymapStateMask | fevent);
	return true;
}
#endif

#ifdef WITH_X11_XINPUT
void GHOST_WindowX11::initXInputDevices()
{
	XExtensionVersion *version = XGetExtensionVersion(m_display, INAME);

	if (version && (version != (XExtensionVersion *)NoSuchExtension)) {
		if (version->present) {
			GHOST_SystemX11::GHOST_TabletX11 &xtablet = m_system->GetXTablet();
			XEventClass xevents[10], ev;
			int dcount = 0;

			if (xtablet.StylusDevice) {
				DeviceMotionNotify(xtablet.StylusDevice, xtablet.MotionEvent, ev);
				if (ev) xevents[dcount++] = ev;
				ProximityIn(xtablet.StylusDevice, xtablet.ProxInEvent, ev);
				if (ev) xevents[dcount++] = ev;
				ProximityOut(xtablet.StylusDevice, xtablet.ProxOutEvent, ev);
				if (ev) xevents[dcount++] = ev;
			}
			if (xtablet.EraserDevice) {
				DeviceMotionNotify(xtablet.EraserDevice, xtablet.MotionEvent, ev);
				if (ev) xevents[dcount++] = ev;
				ProximityIn(xtablet.EraserDevice, xtablet.ProxInEvent, ev);
				if (ev) xevents[dcount++] = ev;
				ProximityOut(xtablet.EraserDevice, xtablet.ProxOutEvent, ev);
				if (ev) xevents[dcount++] = ev;
			}

			XSelectExtensionEvent(m_display, m_window, xevents, dcount);
		}
		XFree(version);
	}
}

#endif /* WITH_X11_XINPUT */

Window
GHOST_WindowX11::
getXWindow()
{
	return m_window;
}

bool
GHOST_WindowX11::
getValid() const
{
	return m_valid_setup;
}

void
GHOST_WindowX11::
setTitle(
		const STR_String& title)
{
	Atom name = XInternAtom(m_display, "_NET_WM_NAME", 0);
	Atom utf8str = XInternAtom(m_display, "UTF8_STRING", 0);
	XChangeProperty(m_display, m_window,
	                name, utf8str, 8, PropModeReplace,
	                (const unsigned char *) title.ReadPtr(),
	                title.Length());

	/* This should convert to valid x11 string
	 * and getTitle would need matching change */
	XStoreName(m_display, m_window, title);

	XFlush(m_display);
}

void
GHOST_WindowX11::
getTitle(
		STR_String& title) const
{
	char *name = NULL;
	
	XFetchName(m_display, m_window, &name);
	title = name ? name : "untitled";
	XFree(name);
}
	
void
GHOST_WindowX11::
getWindowBounds(
		GHOST_Rect& bounds) const
{
	/* Getting the window bounds under X11 is not
	 * really supported (nor should it be desired). */
	getClientBounds(bounds);
}

void
GHOST_WindowX11::
getClientBounds(
		GHOST_Rect& bounds) const
{
	Window root_return;
	int x_return, y_return;
	unsigned int w_return, h_return, border_w_return, depth_return;
	GHOST_TInt32 screen_x, screen_y;
	
	XGetGeometry(m_display, m_window, &root_return, &x_return, &y_return,
	             &w_return, &h_return, &border_w_return, &depth_return);

	clientToScreen(0, 0, screen_x, screen_y);
	
	bounds.m_l = screen_x;
	bounds.m_r = bounds.m_l + w_return;
	bounds.m_t = screen_y;
	bounds.m_b = bounds.m_t + h_return;

}

GHOST_TSuccess
GHOST_WindowX11::
setClientWidth(
		GHOST_TUns32 width)
{
	XWindowChanges values;
	unsigned int value_mask = CWWidth;
	values.width = width;
	XConfigureWindow(m_display, m_window, value_mask, &values);

	return GHOST_kSuccess;
}

GHOST_TSuccess
GHOST_WindowX11::
setClientHeight(
		GHOST_TUns32 height)
{
	XWindowChanges values;
	unsigned int value_mask = CWHeight;
	values.height = height;
	XConfigureWindow(m_display, m_window, value_mask, &values);
	return GHOST_kSuccess;

}

GHOST_TSuccess
GHOST_WindowX11::
setClientSize(
		GHOST_TUns32 width,
		GHOST_TUns32 height)
{
	XWindowChanges values;
	unsigned int value_mask = CWWidth | CWHeight;
	values.width = width;
	values.height = height;
	XConfigureWindow(m_display, m_window, value_mask, &values);
	return GHOST_kSuccess;

}	

void
GHOST_WindowX11::
screenToClient(
		GHOST_TInt32 inX,
		GHOST_TInt32 inY,
		GHOST_TInt32& outX,
		GHOST_TInt32& outY) const
{
	/* This is correct! */

	int ax, ay;
	Window temp;

	XTranslateCoordinates(m_display,
	                      RootWindow(m_display, m_visual->screen),
	                      m_window,
	                      inX, inY,
	                      &ax, &ay,
	                      &temp);
	outX = ax;
	outY = ay;
}
		 
void
GHOST_WindowX11::
clientToScreen(
		GHOST_TInt32 inX,
		GHOST_TInt32 inY,
		GHOST_TInt32& outX,
		GHOST_TInt32& outY) const
{
	int ax, ay;
	Window temp;

	XTranslateCoordinates(
	    m_display,
	    m_window,
	    RootWindow(m_display, m_visual->screen),
	    inX, inY,
	    &ax, &ay,
	    &temp);
	outX = ax;
	outY = ay;
}

void GHOST_WindowX11::icccmSetState(int state)
{
	XEvent xev;

	if (state != IconicState)
		return;

	xev.xclient.type = ClientMessage;
	xev.xclient.serial = 0;
	xev.xclient.send_event = True;
	xev.xclient.display = m_display;
	xev.xclient.window = m_window;
	xev.xclient.format = 32;
	xev.xclient.message_type = m_system->m_atom.WM_CHANGE_STATE;
	xev.xclient.data.l[0] = state;
	XSendEvent(m_display, RootWindow(m_display, DefaultScreen(m_display)),
	           False, SubstructureNotifyMask | SubstructureRedirectMask, &xev);
}

int GHOST_WindowX11::icccmGetState(void) const
{
	unsigned char *prop_ret;
	unsigned long bytes_after, num_ret;
	Atom type_ret;
	int format_ret, st;

	prop_ret = NULL;
	st = XGetWindowProperty(m_display, m_window, m_system->m_atom.WM_STATE, 0,
	                        0x7fffffff, False, m_system->m_atom.WM_STATE, &type_ret,
	                        &format_ret, &num_ret, &bytes_after, &prop_ret);

	if ((st == Success) && (prop_ret) && (num_ret == 2))
		st = prop_ret[0];
	else
		st = NormalState;

	if (prop_ret)
		XFree(prop_ret);
	return (st);
}

void GHOST_WindowX11::netwmMaximized(bool set)
{
	XEvent xev;

	xev.xclient.type = ClientMessage;
	xev.xclient.serial = 0;
	xev.xclient.send_event = True;
	xev.xclient.window = m_window;
	xev.xclient.message_type = m_system->m_atom._NET_WM_STATE;
	xev.xclient.format = 32;

	if (set == True)
		xev.xclient.data.l[0] = _NET_WM_STATE_ADD;
	else
		xev.xclient.data.l[0] = _NET_WM_STATE_REMOVE;

	xev.xclient.data.l[1] = m_system->m_atom._NET_WM_STATE_MAXIMIZED_HORZ;
	xev.xclient.data.l[2] = m_system->m_atom._NET_WM_STATE_MAXIMIZED_VERT;
	xev.xclient.data.l[3] = 0;
	xev.xclient.data.l[4] = 0;
	XSendEvent(m_display, RootWindow(m_display, DefaultScreen(m_display)),
	           False, SubstructureRedirectMask | SubstructureNotifyMask, &xev);
}

bool GHOST_WindowX11::netwmIsMaximized(void) const
{
	unsigned char *prop_ret;
	unsigned long bytes_after, num_ret, i;
	Atom type_ret;
	bool st;
	int format_ret, ret, count;

	prop_ret = NULL;
	st = False;
	ret = XGetWindowProperty(m_display, m_window, m_system->m_atom._NET_WM_STATE, 0,
	                         0x7fffffff, False, XA_ATOM, &type_ret, &format_ret,
	                         &num_ret, &bytes_after, &prop_ret);
	if ((ret == Success) && (prop_ret) && (format_ret == 32)) {
		count = 0;
		for (i = 0; i < num_ret; i++) {
			if (((unsigned long *) prop_ret)[i] == m_system->m_atom._NET_WM_STATE_MAXIMIZED_HORZ)
				count++;
			if (((unsigned long *) prop_ret)[i] == m_system->m_atom._NET_WM_STATE_MAXIMIZED_VERT)
				count++;
			if (count == 2) {
				st = True;
				break;
			}
		}
	}

	if (prop_ret)
		XFree(prop_ret);
	return (st);
}

void GHOST_WindowX11::netwmFullScreen(bool set)
{
	XEvent xev;

	xev.xclient.type = ClientMessage;
	xev.xclient.serial = 0;
	xev.xclient.send_event = True;
	xev.xclient.window = m_window;
	xev.xclient.message_type = m_system->m_atom._NET_WM_STATE;
	xev.xclient.format = 32;

	if (set == True)
		xev.xclient.data.l[0] = _NET_WM_STATE_ADD;
	else
		xev.xclient.data.l[0] = _NET_WM_STATE_REMOVE;

	xev.xclient.data.l[1] = m_system->m_atom._NET_WM_STATE_FULLSCREEN;
	xev.xclient.data.l[2] = 0;
	xev.xclient.data.l[3] = 0;
	xev.xclient.data.l[4] = 0;
	XSendEvent(m_display, RootWindow(m_display, DefaultScreen(m_display)),
	           False, SubstructureRedirectMask | SubstructureNotifyMask, &xev);
}

bool GHOST_WindowX11::netwmIsFullScreen(void) const
{
	unsigned char *prop_ret;
	unsigned long bytes_after, num_ret, i;
	Atom type_ret;
	bool st;
	int format_ret, ret;

	prop_ret = NULL;
	st = False;
	ret = XGetWindowProperty(m_display, m_window, m_system->m_atom._NET_WM_STATE, 0,
	                         0x7fffffff, False, XA_ATOM, &type_ret, &format_ret,
	                         &num_ret, &bytes_after, &prop_ret);
	if ((ret == Success) && (prop_ret) && (format_ret == 32)) {
		for (i = 0; i < num_ret; i++) {
			if (((unsigned long *) prop_ret)[i] == m_system->m_atom._NET_WM_STATE_FULLSCREEN) {
				st = True;
				break;
			}
		}
	}

	if (prop_ret)
		XFree(prop_ret);
	return (st);
}

void GHOST_WindowX11::motifFullScreen(bool set)
{
	MotifWmHints hints;

	hints.flags = MWM_HINTS_DECORATIONS;
	if (set == True)
		hints.decorations = 0;
	else
		hints.decorations = 1;

	XChangeProperty(m_display, m_window, m_system->m_atom._MOTIF_WM_HINTS,
	                m_system->m_atom._MOTIF_WM_HINTS, 32, PropModeReplace,
	                (unsigned char *) &hints, 4);
}

bool GHOST_WindowX11::motifIsFullScreen(void) const
{
	unsigned char *prop_ret;
	unsigned long bytes_after, num_ret;
	MotifWmHints *hints;
	Atom type_ret;
	bool state;
	int format_ret, st;

	prop_ret = NULL;
	state = False;
	st = XGetWindowProperty(m_display, m_window, m_system->m_atom._MOTIF_WM_HINTS, 0,
	                        0x7fffffff, False, m_system->m_atom._MOTIF_WM_HINTS,
	                        &type_ret, &format_ret, &num_ret,
	                        &bytes_after, &prop_ret);
	if ((st == Success) && (prop_ret)) {
		hints = (MotifWmHints *) prop_ret;
		if (hints->flags & MWM_HINTS_DECORATIONS) {
			if (!hints->decorations)
				state = True;
		}
	}

	if (prop_ret)
		XFree(prop_ret);
	return (state);
}

GHOST_TWindowState GHOST_WindowX11::getState() const
{
	GHOST_TWindowState state_ret;
	int state;

	state_ret = GHOST_kWindowStateNormal;
	state = icccmGetState();
	/*
	 * In the Iconic and Withdrawn state, the window
	 * is unmaped, so only need return a Minimized state.
	 */
	if ((state == IconicState) || (state == WithdrawnState))
		state_ret = GHOST_kWindowStateMinimized;
	else if (netwmIsFullScreen() == True)
		state_ret = GHOST_kWindowStateFullScreen;
	else if (motifIsFullScreen() == True)
		state_ret = GHOST_kWindowStateFullScreen;
	else if (netwmIsMaximized() == True)
		state_ret = GHOST_kWindowStateMaximized;
	return (state_ret);
}

GHOST_TSuccess GHOST_WindowX11::setState(GHOST_TWindowState state)
{
	GHOST_TWindowState cur_state;
	bool is_max, is_full, is_motif_full;

	cur_state = getState();
	if (state == (int)cur_state)
		return GHOST_kSuccess;

	if (cur_state != GHOST_kWindowStateMinimized) {
		/*
		 * The window don't have this property's
		 * if it's not mapped.
		 */
		is_max = netwmIsMaximized();
		is_full = netwmIsFullScreen();
	}
	else {
		is_max = False;
		is_full = False;
	}

	is_motif_full = motifIsFullScreen();

	if (state == GHOST_kWindowStateNormal)
		state = m_normal_state;

	if (state == GHOST_kWindowStateNormal) {
		if (is_max == True)
			netwmMaximized(False);
		if (is_full == True)
			netwmFullScreen(False);
		if (is_motif_full == True)
			motifFullScreen(False);
		icccmSetState(NormalState);
		return (GHOST_kSuccess);
	}

	if (state == GHOST_kWindowStateFullScreen) {
		/*
		 * We can't change to full screen if the window
		 * isn't mapped.
		 */
		if (cur_state == GHOST_kWindowStateMinimized)
			return (GHOST_kFailure);

		m_normal_state = cur_state;

		if (is_max == True)
			netwmMaximized(False);
		if (is_full == False)
			netwmFullScreen(True);
		if (is_motif_full == False)
			motifFullScreen(True);
		return (GHOST_kSuccess);
	}

	if (state == GHOST_kWindowStateMaximized) {
		/*
		 * We can't change to Maximized if the window
		 * isn't mapped.
		 */
		if (cur_state == GHOST_kWindowStateMinimized)
			return (GHOST_kFailure);

		if (is_full == True)
			netwmFullScreen(False);
		if (is_motif_full == True)
			motifFullScreen(False);
		if (is_max == False)
			netwmMaximized(True);
		return (GHOST_kSuccess);
	}

	if (state == GHOST_kWindowStateMinimized) {
		/*
		 * The window manager need save the current state of
		 * the window (maximized, full screen, etc).
		 */
		icccmSetState(IconicState);
		return (GHOST_kSuccess);
	}

	return (GHOST_kFailure);
}

#include <iostream>

GHOST_TSuccess
GHOST_WindowX11::
setOrder(
		GHOST_TWindowOrder order)
{
	if (order == GHOST_kWindowOrderTop) {
		XWindowAttributes attr;	  
		Atom atom;

		/* We use both XRaiseWindow and _NET_ACTIVE_WINDOW, since some
		 * window managers ignore the former (e.g. kwin from kde) and others
		 * don't implement the latter (e.g. fluxbox pre 0.9.9) */

		XRaiseWindow(m_display, m_window);

		atom = XInternAtom(m_display, "_NET_ACTIVE_WINDOW", True);

		if (atom != None) {
			Window root;
			XEvent xev;
			long eventmask;

			xev.xclient.type = ClientMessage;
			xev.xclient.serial = 0;
			xev.xclient.send_event = True;
			xev.xclient.window = m_window;
			xev.xclient.message_type = atom;

			xev.xclient.format = 32;
			xev.xclient.data.l[0] = 1;
			xev.xclient.data.l[1] = CurrentTime;
			xev.xclient.data.l[2] = m_window;
			xev.xclient.data.l[3] = 0;
			xev.xclient.data.l[4] = 0;

			root = RootWindow(m_display, m_visual->screen),
			eventmask = SubstructureRedirectMask | SubstructureNotifyMask;

			XSendEvent(m_display, root, False, eventmask, &xev);
		}

		XGetWindowAttributes(m_display, m_window, &attr);

		/* iconized windows give bad match error */
		if (attr.map_state == IsViewable)
			XSetInputFocus(m_display, m_window, RevertToPointerRoot,
			               CurrentTime);
		XFlush(m_display);
	}
	else if (order == GHOST_kWindowOrderBottom) {
		XLowerWindow(m_display, m_window);
		XFlush(m_display);
	}
	else {
		return GHOST_kFailure;
	}
	
	return GHOST_kSuccess;
}

GHOST_TSuccess
GHOST_WindowX11::
swapBuffers()
{
	if (getDrawingContextType() == GHOST_kDrawingContextTypeOpenGL) {
		glXSwapBuffers(m_display, m_window);
		return GHOST_kSuccess;
	}
	else {
		return GHOST_kFailure;
	}
}

GHOST_TSuccess
GHOST_WindowX11::
activateDrawingContext()
{
	if (m_context != NULL) {
		glXMakeCurrent(m_display, m_window, m_context);
		/* Disable AA by default */
		if (m_numOfAASamples > 0) {
			glDisable(GL_MULTISAMPLE_ARB);
		}
		return GHOST_kSuccess;
	} 
	return GHOST_kFailure;
}

GHOST_TSuccess
GHOST_WindowX11::
invalidate()
{
	/* So the idea of this function is to generate an expose event
	 * for the window.
	 * Unfortunately X does not handle expose events for you and
	 * it is the client's job to refresh the dirty part of the window.
	 * We need to queue up invalidate calls and generate GHOST events
	 * for them in the system.
	 *
	 * We implement this by setting a boolean in this class to concatenate
	 * all such calls into a single event for this window.
	 *
	 * At the same time we queue the dirty windows in the system class
	 * and generate events for them at the next processEvents call. */

	if (m_invalid_window == false) {
		m_system->addDirtyWindow(this);
		m_invalid_window = true;
	} 
 
	return GHOST_kSuccess;
}

/**
 * called by the X11 system implementation when expose events
 * for the window have been pushed onto the GHOST queue
 */
 
void
GHOST_WindowX11::
validate()
{
	m_invalid_window = false;
}	
 
 
/**
 * Destructor.
 * Closes the window and disposes resources allocated.
 */

GHOST_WindowX11::
~GHOST_WindowX11()
{
	static Atom Primary_atom, Clipboard_atom;
	Window p_owner, c_owner;
	/*Change the owner of the Atoms to None if we are the owner*/
	Primary_atom = XInternAtom(m_display, "PRIMARY", False);
	Clipboard_atom = XInternAtom(m_display, "CLIPBOARD", False);
	
	p_owner = XGetSelectionOwner(m_display, Primary_atom);
	c_owner = XGetSelectionOwner(m_display, Clipboard_atom);
	
	std::map<unsigned int, Cursor>::iterator it = m_standard_cursors.begin();
	for (; it != m_standard_cursors.end(); ++it) {
		XFreeCursor(m_display, it->second);
	}

	if (m_empty_cursor) {
		XFreeCursor(m_display, m_empty_cursor);
	}
	if (m_custom_cursor) {
		XFreeCursor(m_display, m_custom_cursor);
	}

	if (m_context != s_firstContext) {
		glXDestroyContext(m_display, m_context);
	}
	
	if (p_owner == m_window) {
		XSetSelectionOwner(m_display, Primary_atom, None, CurrentTime);
	}
	if (c_owner == m_window) {
		XSetSelectionOwner(m_display, Clipboard_atom, None, CurrentTime);
	}
	
#if defined(WITH_X11_XINPUT) && defined(X_HAVE_UTF8_STRING)
	if (m_xic) {
		XDestroyIC(m_xic);
	}
#endif

#ifdef WITH_XDND
	delete m_dropTarget;
#endif

	XDestroyWindow(m_display, m_window);
	XFree(m_visual);
}




/**
 * Tries to install a rendering context in this window.
 * \param type	The type of rendering context installed.
 * \return Indication as to whether installation has succeeded.
 */
GHOST_TSuccess
GHOST_WindowX11::
installDrawingContext(
		GHOST_TDrawingContextType type)
{
	/* only support openGL for now. */
	GHOST_TSuccess success;
	switch (type) {
		case GHOST_kDrawingContextTypeOpenGL:
		{
#ifdef WITH_X11_XINPUT
			/* use our own event handlers to avoid exiting blender,
			 * this would happen for eg:
			 * if you open blender, unplug a tablet, then open a new window. */
			XErrorHandler old_handler      = XSetErrorHandler(GHOST_X11_ApplicationErrorHandler);
			XIOErrorHandler old_handler_io = XSetIOErrorHandler(GHOST_X11_ApplicationIOErrorHandler);
#endif

			m_context = glXCreateContext(m_display, m_visual, s_firstContext, True);
			if (m_context != NULL) {
				if (!s_firstContext) {
					s_firstContext = m_context;
				}
				glXMakeCurrent(m_display, m_window, m_context);
				glClearColor(0.447, 0.447, 0.447, 0);
				glClear(GL_COLOR_BUFFER_BIT);
				success = GHOST_kSuccess;
			}
			else {
				success = GHOST_kFailure;
			}

#ifdef WITH_X11_XINPUT
			/* Restore handler */
			(void) XSetErrorHandler(old_handler);
			(void) XSetIOErrorHandler(old_handler_io);
#endif
			break;
		}
		case GHOST_kDrawingContextTypeNone:
		{
			success = GHOST_kSuccess;
			break;
		}
		default:
			success = GHOST_kFailure;
	}
	return success;
}



/**
 * Removes the current drawing context.
 * \return Indication as to whether removal has succeeded.
 */
GHOST_TSuccess
GHOST_WindowX11::
removeDrawingContext()
{
	GHOST_TSuccess success;

	if (m_context != NULL) {
		glXDestroyContext(m_display, m_context);
		success = GHOST_kSuccess;
	}
	else {
		success = GHOST_kFailure;
	}
	return success;	
}


Cursor
GHOST_WindowX11::
getStandardCursor(
		GHOST_TStandardCursor g_cursor)
{
	unsigned int xcursor_id;

#define GtoX(gcurs, xcurs)  case gcurs: xcursor_id = xcurs
	switch (g_cursor) {
		GtoX(GHOST_kStandardCursorRightArrow, XC_arrow); break;
		GtoX(GHOST_kStandardCursorLeftArrow, XC_top_left_arrow); break;
		GtoX(GHOST_kStandardCursorInfo, XC_hand1); break;
		GtoX(GHOST_kStandardCursorDestroy, XC_pirate); break;
		GtoX(GHOST_kStandardCursorHelp, XC_question_arrow); break;
		GtoX(GHOST_kStandardCursorCycle, XC_exchange); break;
		GtoX(GHOST_kStandardCursorSpray, XC_spraycan); break;
		GtoX(GHOST_kStandardCursorWait, XC_watch); break;
		GtoX(GHOST_kStandardCursorText, XC_xterm); break;
		GtoX(GHOST_kStandardCursorCrosshair, XC_crosshair); break;
		GtoX(GHOST_kStandardCursorUpDown, XC_sb_v_double_arrow); break;
		GtoX(GHOST_kStandardCursorLeftRight, XC_sb_h_double_arrow); break;
		GtoX(GHOST_kStandardCursorTopSide, XC_top_side); break;
		GtoX(GHOST_kStandardCursorBottomSide, XC_bottom_side); break;
		GtoX(GHOST_kStandardCursorLeftSide, XC_left_side); break;
		GtoX(GHOST_kStandardCursorRightSide, XC_right_side); break;
		GtoX(GHOST_kStandardCursorTopLeftCorner, XC_top_left_corner); break;
		GtoX(GHOST_kStandardCursorTopRightCorner, XC_top_right_corner); break;
		GtoX(GHOST_kStandardCursorBottomRightCorner, XC_bottom_right_corner); break;
		GtoX(GHOST_kStandardCursorBottomLeftCorner, XC_bottom_left_corner); break;
		GtoX(GHOST_kStandardCursorPencil, XC_pencil); break;
		GtoX(GHOST_kStandardCursorCopy, XC_arrow); break;
		default:
			xcursor_id = 0;
	}
#undef GtoX

	if (xcursor_id) {
		Cursor xcursor = m_standard_cursors[xcursor_id];
		
		if (!xcursor) {
			xcursor = XCreateFontCursor(m_display, xcursor_id);

			m_standard_cursors[xcursor_id] = xcursor;
		}
		
		return xcursor;
	}
	else {
		return None;
	}
}

Cursor
GHOST_WindowX11::
getEmptyCursor(
        ) {
	if (!m_empty_cursor) {
		Pixmap blank;
		XColor dummy;
		char data[1] = {0};
			
		/* make a blank cursor */
		blank = XCreateBitmapFromData(
		    m_display,
		    RootWindow(m_display, DefaultScreen(m_display)),
		    data, 1, 1
		    );

		m_empty_cursor = XCreatePixmapCursor(m_display, blank, blank, &dummy, &dummy, 0, 0);
		XFreePixmap(m_display, blank);
	}

	return m_empty_cursor;
}

GHOST_TSuccess
GHOST_WindowX11::
setWindowCursorVisibility(
		bool visible)
{
	Cursor xcursor;
	
	if (visible) {
		if (m_visible_cursor)
			xcursor = m_visible_cursor;
		else
			xcursor = getStandardCursor(getCursorShape() );
	}
	else {
		xcursor = getEmptyCursor();
	}

	XDefineCursor(m_display, m_window, xcursor);
	XFlush(m_display);
	
	return GHOST_kSuccess;
}

GHOST_TSuccess
GHOST_WindowX11::
setWindowCursorGrab(
		GHOST_TGrabCursorMode mode)
{
	if (mode != GHOST_kGrabDisable) {
		if (mode != GHOST_kGrabNormal) {
			m_system->getCursorPosition(m_cursorGrabInitPos[0], m_cursorGrabInitPos[1]);
			setCursorGrabAccum(0, 0);

			if (mode == GHOST_kGrabHide)
				setWindowCursorVisibility(false);

		}
#ifdef GHOST_X11_GRAB
		XGrabPointer(m_display, m_window, False, ButtonPressMask | ButtonReleaseMask | PointerMotionMask,
		             GrabModeAsync, GrabModeAsync, None, None, CurrentTime);
#endif
	}
	else {
		if (m_cursorGrab == GHOST_kGrabHide) {
			m_system->setCursorPosition(m_cursorGrabInitPos[0], m_cursorGrabInitPos[1]);
			setWindowCursorVisibility(true);
		}

		if (m_cursorGrab != GHOST_kGrabNormal) {
			/* use to generate a mouse move event, otherwise the last event
			 * blender gets can be outside the screen causing menus not to show
			 * properly unless the user moves the mouse */
			XWarpPointer(m_display, None, None, 0, 0, 0, 0, 0, 0);
		}

		/* Almost works without but important otherwise the mouse GHOST location can be incorrect on exit */
		setCursorGrabAccum(0, 0);
		m_cursorGrabBounds.m_l = m_cursorGrabBounds.m_r = -1; /* disable */
#ifdef GHOST_X11_GRAB
		XUngrabPointer(m_display, CurrentTime);
#endif
	}

	XFlush(m_display);
	
	return GHOST_kSuccess;
}

GHOST_TSuccess
GHOST_WindowX11::
setWindowCursorShape(
		GHOST_TStandardCursor shape)
{
	Cursor xcursor = getStandardCursor(shape);

	m_visible_cursor = xcursor;
	
	XDefineCursor(m_display, m_window, xcursor);
	XFlush(m_display);

	return GHOST_kSuccess;
}

GHOST_TSuccess
GHOST_WindowX11::
setWindowCustomCursorShape(
		GHOST_TUns8 bitmap[16][2],
		GHOST_TUns8 mask[16][2],
		int hotX,
		int hotY)
{
	setWindowCustomCursorShape((GHOST_TUns8 *)bitmap, (GHOST_TUns8 *)mask,
	                           16, 16, hotX, hotY, 0, 1);
	return GHOST_kSuccess;
}

GHOST_TSuccess
GHOST_WindowX11::
setWindowCustomCursorShape(	
		GHOST_TUns8 *bitmap,
		GHOST_TUns8 *mask,
		int sizex,
		int sizey,
		int hotX,
		int hotY,
		int fg_color,
		int bg_color)
{
	Colormap colormap = DefaultColormap(m_display, DefaultScreen(m_display));
	Pixmap bitmap_pix, mask_pix;
	XColor fg, bg;
	
	if (XAllocNamedColor(m_display, colormap, "White", &fg, &fg) == 0) return GHOST_kFailure;
	if (XAllocNamedColor(m_display, colormap, "Black", &bg, &bg) == 0) return GHOST_kFailure;

	if (m_custom_cursor) {
		XFreeCursor(m_display, m_custom_cursor);
	}

	bitmap_pix = XCreateBitmapFromData(m_display, m_window, (char *) bitmap, sizex, sizey);
	mask_pix = XCreateBitmapFromData(m_display, m_window, (char *) mask, sizex, sizey);
		
	m_custom_cursor = XCreatePixmapCursor(m_display, bitmap_pix, mask_pix, &fg, &bg, hotX, hotY);
	XDefineCursor(m_display, m_window, m_custom_cursor);
	XFlush(m_display);

	m_visible_cursor = m_custom_cursor;
	
	XFreePixmap(m_display, bitmap_pix);
	XFreePixmap(m_display, mask_pix);

	XFreeColors(m_display, colormap, &fg.pixel, 1, 0L);
	XFreeColors(m_display, colormap, &bg.pixel, 1, 0L);

	return GHOST_kSuccess;
}


GHOST_TSuccess
GHOST_WindowX11::
beginFullScreen() const
{
	{
		Window root_return;
		int x_return, y_return;
		unsigned int w_return, h_return, border_w_return, depth_return;

		XGetGeometry(m_display, m_window, &root_return, &x_return, &y_return,
		             &w_return, &h_return, &border_w_return, &depth_return);

		m_system->setCursorPosition(w_return / 2, h_return / 2);
	}


	/* Grab Keyboard & Mouse */
	int err;

	err = XGrabKeyboard(m_display, m_window, False,
	                    GrabModeAsync, GrabModeAsync, CurrentTime);
	if (err != GrabSuccess) printf("XGrabKeyboard failed %d\n", err);

	err = XGrabPointer(m_display, m_window, False,  PointerMotionMask | ButtonPressMask | ButtonReleaseMask,
	                   GrabModeAsync, GrabModeAsync, m_window, None, CurrentTime);
	if (err != GrabSuccess) printf("XGrabPointer failed %d\n", err);

	return GHOST_kSuccess;
}

GHOST_TSuccess
GHOST_WindowX11::
endFullScreen() const
{
	XUngrabKeyboard(m_display, CurrentTime);
	XUngrabPointer(m_display, CurrentTime);

	return GHOST_kSuccess;
}

GHOST_TSuccess
GHOST_WindowX11::
setSwapInterval(int interval) {
	if (!GLX_EXT_swap_control || !glXSwapIntervalEXT
#ifdef SWAP_INTERVALS_WORKAROUND
	    || g_swap_interval_disabled
#endif  // SWAP_INTERVALS_WORKAROUND
	    )
	{
		return GHOST_kFailure;
	}
	glXSwapIntervalEXT(m_display, m_window, interval);
	return GHOST_kSuccess;
}

#ifdef SWAP_INTERVALS_WORKAROUND
static int QueryDrawable_ApplicationErrorHandler(Display *display, XErrorEvent *theEvent)
{
	fprintf(stderr, "Ignoring Xlib error: error code %d request code %d\n",
	        theEvent->error_code, theEvent->request_code);
	if (!g_swap_interval_disabled) {
		fprintf(stderr, "Disabling SWAP INTERVALS extension\n");
		g_swap_interval_disabled = true;
	}
	return 0;
}

static int QueryDrawable_ApplicationIOErrorHandler(Display *display)
{
	fprintf(stderr, "Ignoring Xlib error: error IO\n");
	if (!g_swap_interval_disabled) {
		fprintf(stderr, "Disabling SWAP INTERVALS extension\n");
		g_swap_interval_disabled = true;
	}
	return 0;
}
#endif  // SWAP_INTERVALS_WORKAROUND

int
GHOST_WindowX11::
getSwapInterval() {
	if (GLX_EXT_swap_control) {
#ifdef SWAP_INTERVALS_WORKAROUND
		/* XXX: Current MESA driver will give GLXBadDrawable for all
		 *      the glXQueryDrawable requests with direct contexts.
		 *
		 *      To prevent crashes and unexpected behaviors, we will
		 *      disable swap intervals extension if query fails here.
		 *      (because if we will override interval without having
		 *      old value we couldn't restore it properly).
		 */
		XErrorHandler old_handler      = XSetErrorHandler(QueryDrawable_ApplicationErrorHandler);
		XIOErrorHandler old_handler_io = XSetIOErrorHandler(QueryDrawable_ApplicationIOErrorHandler);
#endif  // SWAP_INTERVALS_WORKAROUND

		unsigned int value = 0;
		glXQueryDrawable(m_display, m_window, GLX_SWAP_INTERVAL_EXT, &value);

#ifdef SWAP_INTERVALS_WORKAROUND
		/* Restore handler */
		(void) XSetErrorHandler(old_handler);
		(void) XSetIOErrorHandler(old_handler_io);
#endif  // SWAP_INTERVALS_WORKAROUND

		return (int)value;
	}
	return 0;
}
